Vulcanizes



(No Mo de1,) 2 shee'tsgsheet 1.

F. H. CHIDBSTBR. VULCANIZBR.

No. 315,241. Patented Apr. 7,1885.

www @Wvw (No ModeL) n 2 Sheets-Shet 1:". H. CHIJDESTER.

VULGANIZBR. Y

NO- 315,241- l Patented Apr. 7, 18785.'

Mylan/ so that there shall be an immediate cessation l -UNiTE STATESFRANK H. oHrDnsrnn,

or ingssrLLoN, oHro.

VULCANIZ'ER.

SPECIFICATION forming part of Letters Patent No. 315,241, dated April'1, 1885.

Application filed December 8. 1884. (No model.)

.To @ZZ whom, it may concern:

Beit known that I, FRANK H. CHIDnsTEn, a citizen of th-e United States,residing at Massillon, in the county of Stark and State of Ohio, haveinvented certain new and useful lImprovementsinVulcanizers, of which thefollowing is a specication, reference being had therein to theaccompanying drawings.

This invention relates to mechanism for vulcanizing, especially to thedevices used by dentists for treating small quantities of inaterial, itrelating more particularly to those parts of the mechanism by means ofwhich the degree of heat is regulated, and alsothe time` of applicationthereof.

Figure I is a side View of an apparatus embodying myimprovements. Fig. 2is a longitudinal section through the burner on a larger scale. Fig. 3shows the needle-valve and its supporting-rod detached. Figs. 4 and 5are. sectional views of the devices for regulatingv the escape of airfrom the'air-reservoir.

In the drawings I have shown a vapor-stove, which may be of any of theseveral styles now 1 known and used, in which employment is madeofavolume ofair underpressure for feeding the hydrocarbon liquid upwardthrough the supply-tube of the burner.

It is not necessary to describe in detail all the parts of this portionof the mechanism.

A represents, generally, the reservoir which contains the hydrocarbon,and B the supplytube, from which the oil rises to the burner. At @thereis an air-tube, through which air can be forced by means of a hand-bulb,C', or other equivalent mechanism, there being valves adapted to permitthe ingress of the air when the pressure is great enough from theoutside, and adapted also to prevent the escape ofthe air. With thismechanism thus generally referred to I combine devices by"`l means ofwhich at any instant the pressure of g the air within the reservoir maybe relievedfj;y

n the upward flow'ng of the oil. The means.`

D represents, generally, a clock mechanism, which, so far as the mainoperative parts thereof are concerned, may be of any common form-that isto say, it is only necessary that it should have means for markingregular intervals of time, together with adj ustablemechanism forbringing into operation the devices which relieve the reservoir of theair-pressure.

drawings as being provided with an adjustable tripper, E, which can comeinto engagement with a rod, and the latter moves a valve or cock thatcloses an aperture connected with the air-reservoir, and when thetripping device reaches said rod the valve is opened and the air isallowed to escape. The tripper can be set so as to be. brought intooperation by the clock mechanism at any required moment. By meansofthese devices the flow ofthe hydrocarbon liquid to the burner can beinstantly stopped, so that the generation of the heat will be broken atthe instant required. I have also shown in the drawings a mechanism bymeans of which thesteaungenerated in the vulcanizeinprcper can beutilized to regulate th needle-orifice in the burner, the pressure ofthe steam varying, as is well known, in proportion to the heat generatedbelow the vnlamount of vapor which escapes at the y,

canizer, and therefore in proportion to the amount of vapor whichescapes at the needley orifice.

In my previous patent, No. 300,953, dated June 24, 1884, I have shown amechanism for regulating the flow of the vapor from a vulcanizer-burner;but I have found that under some circumstances one of the characterherein shown is superior. In the present case the steam is allowed topass through a duct, F, into a chamber, G, having a diaphragm, G',against which the steam can /be-ar. To this diaphragm there is securedthe valve-rod H, the latter being provided with a needle-point at h,which passes through andtits the orifice at which the vapor escapes.This orice is formed in an adj ustable piece or block, I, which isscrew-threaded and ts in the upper end of the burner-tube I. The vaporpasses to the interior of this latter`tubeI at a point immediately belowthe adjustable part I, through a IOO 6c l I have shown the clockmechanism in the tube, J, preferably constituting a part of the supportfor the upper portion, J2, which is iitted to the top of the supply-tubeB, that rises from the reservoir below. The valve-rod His not integralwith the needle-point h. Thelatter consists of a conical part, h, and aball or enlargement, h, at the lower end, which is fitted in a socket,h2, in the upper end of the valve-rod. When the point is thus connectedwith the valve-rod, there is an assurance that it shall tightly closethe orifice regardless of the position of the valve-rod. It is verydifficult to secure the latter to the diaphragm in such manner as tohave it force the needle properly into the orifice under allcircumstances; but this Ydifiiculty is overcome by interposing a jointbetween the needle-tip and the diaphragm adapted to operate, as doesthat shown. However, I do not wish to be limited to Vall of the detailsin this respectn-that is to say, to the diaphragm or the adjustablepiece I or the other parts set forth-inasmuch as this part of theinvention is applicable to the closing of the needle-orifice when theother parts are considerably varied.

I have above called attention, generally, to the air-releasingmechanism, and willdcscribe the details of the construction shown.

E E2 represent a stop-cock, the tube E of which is inserted into thecase of the clock D and secured thereto by nuts d, fitting threads at d,or by other suitable means. The rotary part Ez is provided with aright-angled passageway adapted to register with the passage e, the latterbeing connected by a hose, E, with the interior of the air-reservoir.

e2 is a draw-rod situated in the aperture in the tubular part E. adaptedto t into a socket at e in the part El, and when said inner endis seatedin said socket the part E2 is prevented from rotating. A spring, e4, isso arranged that it tends to force the rod el into said socket at e6. Ate5 there is a spring connected with the revolving part E2, this springtending to draw said part E2 into the position shown in Fig. eL-that is,into the position which brings the aperture e to register with theaperture e. At e3 the draw-rod is bent or provided with astud,projection, or lug, with which l[he tripper E can engage.

It is at its inner end- The latter at the time set draws the rod outfrom the socket e6, whereupon spring e5 compels the part E2 to takeaquarter-turn, bringing the ducts e e into conjunction. After this occursthe air under pressurein the reservoir will escape through the tube E4and said ducts e e. As said above, these parts may be varied to a largeextent without departing from the spirit of the invention.

What I claim isl. In a vulcanizer, the combination ofahydrocarbon-reservoi r, an air-reservoir adjacent thereto, means,substantially as set forth, for allowing the escape of the air from saidreservoir, and a clock-work, constructed and arranged substantially asset forth, to-operate the said air-releasing devices.

2. rlhe combination of the steam-generator, the chamber provided with adiaphragm or partition, the duct communicating with the steam-generatorand With the chamber upon one side of said diaphragm or partition, andan adjustable bar or block provided with a needle-orifice, substantiallyas described.

3. rIhe combination, with theneedle-point and the part having theneedle-orifice, of a valve-rod united to the point by a flexible joint,substantially as set forth.

4. rlhe combination, with the air-reservoir and the devices which storeair therein under pressure, of the timing mechanism, the valve orstop-cock attached to the timing mechanism, the escape-ductcommunicating with the air-reservoir and with the aperture at or throughsaid valve or stop-cock, and tripping devices, substantially asdescribed, operated by the clock to open said valve or stop-cock, as setforth.

V5. The combination, with the air-reservoir, of a timing mechanism andan air-escape duct, a stop-cock or valve for said duct, and anintermittingly-moving rod operated by the timing mechanism to releasesaid valve or stopcock, substantially as set forth.

In testimony whereofI affix my signature in presence of two witnesses.

FRANK H. CHIDESTER.

Vitnesses:

S. J. HARMOUNT, Isaac M. MAY.

